Adjusting The No-Load Maximum - Komatsu 4D98 Series Shop Manual

3.
Inspection and Adjustement
3.8 Adjusting the No-load Maximum (or Minimum) Revolutions
After warming the engine up, gradually
raise the speed and set it at the no-load
maximum revolution.
If the no-load maximum revolution is
outside the standard range, adjust it by
turning the no-load maximum revolu-
tion adjusting bolt.
Then set the no-load minimum revolu-
tion by adjusting the no-load minimum
revolution adjusting bolt.
l
Standards
1 2200 1 2395-2445 1 800 or less 1
1 2400 1 2590-2640 1 800 or less 1
2500 2700-2750 800 or less
Note) The rpm values above for adjustment
vary slightly with the load equipment on
which the engine is to be mounted.
No-load minimum revolution
adjusting bolt
\
No-load maximum revolution
adjusting bolt
3-9